Machine for coating cores



Jan. 25,1927. 15,4 0

H. s. WALKER ET AL MACHINE FOR COATING CORES Original Filed n 1922 2 Sheets-Sheet 1 Z5 23 m 4 Z v 37 Jan. 2 192 7 H. G. WALKER ET AL MACHINE FOR COATING CORES Original Filed n 1222 2 Sheets-Sheet 2 Patented Jan; 25, 1927. r

UNITED STATES P'ATENT- OFFICE.

HOWARD GEORGE WALKER, OF LA GRANGE, AND ALBERT THOMAS MARCH, 01 WEST- EBN SPRINGS, ILLINOIS, ASSIGNORS TO WESTERN ELECTRIC COMPANY, INCOR- PORATED, OF NEW YORK, Y., A CORPORATION OF NEW YORK.

MACHINE FOR COATING CORES.

Application filed June 20, 1922} Serial No. 569,754. Renewed ctoher20, 1826.

This invention relates to improvements in mechanism for working pulpous material and more particularly to mechanism for forming such material to constitute a homogeneous coating for cores such as rod, wire and the like.

Mechanisms made'in accordance withthis invention are particularly well adapted for use in connection with the method and ap-- 1 paratus for coating cores disclosed in our co-pending applications Serial No. 547,923, filed March 29, 1922, and Serial No. 547,924, filed March 29, 1922 respectively, but it is to be understood that the invention is not limited to such use but only in so far as is defined in the appended claims. The word pulp as used in the specification and claims is to be understood as defining and including any cohering fibrous mass whether suspended in a liquid, moist or substantially dry.

The drawings illustrate several embodiments of the invention, in which Fig. 1' is a side elevation partly in section of a forming mechanism embodying the features of the invention;

Fig. 2 is a vertical sectional view taken on the line 2-2. of Fig. 1;

Fig. 3 is a side elevation partly in section of a modified form of forming device also 80 embodying the features of the invention;

Fig. 4 is a vertical sectional view taken on the line 4-4 of Fig. 3; i

Fig. 5 is a side elevation of an apparatus for coating cores in strand form with a 85 pulpous material, equipped with a forming mechanism embodying the present invention; Fig. 6 is an enlarged vertical sectional view, showing the form of the pulp coating on the core as it is delivered from the squeezing rolls of the apparatus shown in Fig. 5; and

Fig. '7 is an enlarged vertical sectional view showing the form of the pulp coating after it has been worked by the forming mechanisms shown in Figs. 1 and 3. Mechanisms made in accordance with the present invention are designed to work pulpous material applied to a core and are particularly adapted to operate in conjunction with the apparatus shown in our co-pending application Serial No. 54:7,924, filed March 29, 1922. This apparatus is designed to coat cores in strand form with pulpous material and, briefly described, includes a drum tailed description of the operation of this apparatus, reference is made to our co-pending application above referred to since this mechanism is indentical with that shown in our said application.

m the pulp coatin into 130 i The forming mechanism embodying the 1 features of the present invention is designed to receive the coated core from the squeezmg rolls 45 and wrap the pulp ribbon laterally around the. core until it conforms substantially with the shape thereof, as is shown in Fig. '7.

A preferred type of forming mechanism is shown in Figs. 1 and 2 and comprises a cup-shaped member 10 and a. disc 11 secured together and in spaced relation by means of rods 12. Two shafts 13 and 14 are rotatably mounted within suitable bearings supported by the cup-shaped member 10 and disc 11,. the said shaftsbeing disposed diametrically opposite each other. Each of the shafts carry fast thereon a cylindrical brush 15 formed either of relatively stifi' bristles or of wire. The shafts 13 and 14 have secured thereto pinions 16 and .17 re spectively which mesh withan internal gear 18 integral with a cup-shaped member 19, suitably supported by the apparatus to which,

the forming mechanism 1s attached. The.

cup-shaped member -19 has integral therewith a sleeve portion 20 which provides a bearing for a sleeve 21 integral with the plate 11. The other end of the forming mechanism is supported by a. sleeve 22 intgral' with the cup-shaped memher 10, the sleeve being rotatably mounted within suit able hearings carried by the apparatus to which the forming mechanism is attached. When the above described mechanism used in conjunction with the pulp coating apparatus described, in our ctr-pending ap plication Serial lie. thereto as shown in Fig. 5, being positioned to receive from the squeezing rolls 45 the core with a pulpribbon attached thereto, the coated core being drawn through the 542,924: it is attached ing after which it sleeve 22, between the brushes 15 and then through the sleeve 21. The brushes 15 are rotated rapidly around the core as an axis by means of a pulley 23 attached to the sleeve 21, the said ulley being driven by any suitable means ghot shown). As the brushes l5 rotate around the core they serve to wrap the pulp ribbon laterally around the core. This action of the brushes is accentuated due to their individual rotation in addition to their rotation around the core. Their individual rotation is caused by the pinions 16 and .17 meshed with the fixed internal gear l8,'as is readily understood. Upon leaving the forming mechanism the pulp coatin has the shape shown in Fig. 7. From the iorm ing mechanism the coated strand is passed over heated drums 50 to dry the coatis stored on a take-up reel 55.

A modified type of forming apparatus is shown in Figs. 3 and a and comprises a pair of cup-shaped members 25 and 26 secured together and in spaced relation by a plurality of rods 27 The cup-shaped members 25 and 26 have integral therewith sleeves 28 and 29 respectively, which are rotatably-mounted within suitable bearings carried by the machine to which the forming mechanism is attached. Secured to two of the rods 27 which are diametrically opposite, are a plurality of fiat spring arms 30 and 31 which are set at opposite oblique angles so that they converge in the manner shown in Fig. 3.

When this mechanism is used in connection with the apparatus for coating cores with pulpdisclosed in ounco-pending application Serial No. 547,924 it is positioned to receive the coated core from the squeezing rolls 45, the core being drawn through the sleeve 28,- into engagement with the arms 30 and 31 and thence through the sleeve 29 to the drying drums 50.and' take-up reel 55. The spring arms 30 and 31 are arranged in pairs and engage the coated core at opposite sides thereof in the manner shown in *ig, 4. The spring arms-30 and 31 are rapidly ro tated and as the core with a pulp coating in ribbon form passes between them, they serve to wrap the pulp ribbon laterally;

around the core so that it forms a coating having the shape shown in Eiga 7. The members 30 and 31 are rotated a pulley 32 secured to the sleeve 29, the said pulley being driven by any suitable means (not shown).

.What is claimed is:

1. The combination with mechanism' for applying pulpous material to a core, of mechanism for working said material comprising a plurality ofresilient members engaging the material and rotatable around t 1e core as an axis.

2. The combination with mechanism for by means of.

1,615,4lati applying pulpous material to a core, of mechanism for working said material comprising two series of resilient members en,- gaging the material at spaced points about the axis'of the core, and rotatable around the said core as an axis.

3. The combination with mechanism for applying pulpous'material to a core, of mechanism for working said material comprising two series of resilient members engaging the material at opposite sides of the core and rotatable around the core as an axis.

.4. The combination with mechanism for applying pulpous material to-a core of mechanism for working said material comprising a body portion having an opening through which the coated core may be passed, a plurality of resilient members carried by said body portion and engaging said material, and means for rotating said body portion.

5. The combination with mechanism for applying pulpous material to a core, of

mechanism for working said material comprising two series of resilient members en: gaging the material at opposite sides of the core, sald' resilient members rotatable on axes parallel with the core and means for rotating said axes around the. core as an axis.

6. The combination with mechanism for applying pulpous material to a core, of mechanism for working said material com-' prising a brush engaging said material and rotatable around the core as an axis.-

Z. The combination with mechanism for applying pulpous. material to a core, of mechanism for Working said material comprising a rotary brush engaging said material. I

v 8. The combination with mechanism, for applying pulpous material to a core, of mechanism for working said material comprising a rotary brush engaging said material, said brush rotatable around the core as an axis.

9. The combination with mechanism for applying pulpous material to a core, of mechanism for working said material comprising a pair of rotary brushes engaging the said material at opposite sides of the core.

10. The combination with mechanism for applying pulpous material to a core,.of mechanism for working said material comprising a body portion having an opening through which the .coated core may be assed, a pair of brushes carried by said ody ortion and engaging said material at space oints about the axis of the core, and means tor rotating said brushes.

11. The combination with mechanism for applying pulpous material to a core, of mechanism for working said material com- 12. The combination with mechanism for applying pulpous material to a core, of mechanism for working. sald material com prising a rotary body portion having an" opening through which the coated core may. be passed, a brush-mounted onan axis parallel with the core and operatively connected with said body portion so as to be rotated on its axis by a rotation of said body portion,

and means for rotating said body portion to rotate the axis of said brush around the core as an axis, said brush disposed in engagement with said material.

13. The combination with mechanism for applying pulpous material to a core, of

mechanism for working said material comprising a rotary body portion having an opening through which the coated core may be passed, a pair of brushes mounted on axes parallel with the core and operatively connected with said body portion so as to be rotated about their axes by a rotation of the body portion and means for rotating said body portion to rotate the axes of said brushes around the core as an axis, said brushes. disposed in engagement with said material at points spaced about the axis of the core.

let-.The combination with mechanism for applying pulpous material to acore including means for squeezing the pulp coating till into ribbon form, of mechanism for wrapping said pulp ribbon around the core comprising a plurality of resilient members engaging the material and rotatable around the core as an axis.

15. The combination with mechanism for applying pulpous material to a core including means for squeezing the pulp coating into ribbon torm, of mechanism for wrapping the said pulp ribbon around the core comprising a pair of brushes disposed in engagement with said pulp ribbon.

16. The combination with mechanism for applying pulpous material to a core including meansfor squeezing the pulp coating into ribbon form, of means for wrapping the said pulp ribbon around the core comprising a pair of brushes disposed in en gagement with said pulp ribbon, means for rotating said brushes on axes parallel with the core, and means for rotating said axes around the core as an axis.

17. The combination with mechanism for. applying pulpous material to a core, of mechanism for working said material com"- prising a rotary body portion and a. rotary member carried thereby and mounted on an axis parallel to and spaced from the core,

said member operatively connected with the body portion so as to be rotated by a rotation thereof and positioned in engagement with the pulpous material. I

18. The combination with mechanism for applying pulpous material to a core, or mechanism for working said material com prising a rotary body portion having an opening through which the coated core may be passed, and a member carried by said body portion .and operatively connected" therewith so as to be rotated by a rotation of said body portion, said member positioned inengagement with said material.

19. The, combination with mechanism for coating a core with pulp including means for subjectingthecore to a wet pulp where by pulp is deposited thereon and means for squeezing the deposited pulp to remove excess moisture, offmechanism for working said deposited pulp comprising a plurality of resilient members engaging the material and rotatable around the core as an axis.

20. The combination with mechanism for coating .a core with pulp including a receptacle holding a supply of liquid containing pulp and means for bringing the core and said liquid into'intimate contact and causing a relative movement between the coreand pulp whereby pulp is applied to the core,.of mechanism for working said material comprising a plurality of resilient members engaging the material and rotatable around the core as an axis.

21. The combination with mechanism forv coating a core in strand form with pulp including. means for attaching wet pulpous material to the core, of mechanism for forming the material on the core to constitute a coating conforming with the shape of the core comprising'a plurality of resilient members engaging the material and rotatable around the core as an ax1s.

22. The combination with mechanism for coating a core in strand form including means for applying unfinished paper to the core, of mechanism for completing the fabricating of the unfinished paper on the core to constitute a coating conforming with the shape of the core, said fabricating means comprising a plurality of resilient'members engaging the unfihished paper and rotatable around the core .as an axis.

23. The combination with mechanism for coating a core' in strand form including means for applying unfinished paper to the core, of mechanism for completing the fabrication of the unfinished paper on the core to constitute a coating conforming with the shape of the core, said fabricating means com rising a member engaging the unfinishe paper and rotatable on an axis parallel with the core and means tor rotating the member around the core as an axis.

24. The combination with mechanism for coating a core in strand form including means for applying a wet pulpous mixture to a continuously moving core in such manner as to cause the pulp to be attached thereto, of mechanism for working the applied pulp comprising a plurality of resilient members engaging the pulp and rotatable around the core as an axis.

25. The combination with mechanism for applying pulpous material to a core includingmeans for squeezing the pulp coating into ribbon form, of mechanism for wrapping the said pulp ribbon around the core comprising a pair of rotatable members disposed in engagement with said pulp ribbon, and means for rotating said members.

26. The combination of mechanism for coating a core in strand form with pulp including means for attaching a Wet pulpous ribbon to the core, of mechanism for forming said ribbon on the core to constitute a coating conforming with the shape of the core comprising a member engaging the ribbon and means for rotating the member on an axis parallel to the core.

27. The combination with mechanism for coating a core in strand form with pulp including means for attaching a wet pulpous ribbon to the core, of mechanism for forming said ribbonon the core to constitute a coating conforming with tne shape of the core comprising a pair of brushes disposed in engagement with said pulp ribbon, means for rotating said brushes on axes parallel with the core and means for rotating said axes around the core as an axis In Witness whereof, we hereunto subscribe our names this 13th day of June, A. D. 1922.

HOWARD GEORGE WALKER. ALBERT THOMAS MARCH. 

